EP2632167A3 - System to detect failed pixels in a sensor array - Google Patents

System to detect failed pixels in a sensor array Download PDF

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Publication number
EP2632167A3
EP2632167A3 EP13156168.0A EP13156168A EP2632167A3 EP 2632167 A3 EP2632167 A3 EP 2632167A3 EP 13156168 A EP13156168 A EP 13156168A EP 2632167 A3 EP2632167 A3 EP 2632167A3
Authority
EP
European Patent Office
Prior art keywords
photosensitive devices
optical sensor
sensor array
intensity
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13156168.0A
Other languages
German (de)
French (fr)
Other versions
EP2632167B1 (en
EP2632167A2 (en
Inventor
Anatoly G. Grinberg
Wayne R. Foster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rockwell Automation Technologies Inc
Original Assignee
Rockwell Automation Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwell Automation Technologies Inc filed Critical Rockwell Automation Technologies Inc
Publication of EP2632167A2 publication Critical patent/EP2632167A2/en
Publication of EP2632167A3 publication Critical patent/EP2632167A3/en
Application granted granted Critical
Publication of EP2632167B1 publication Critical patent/EP2632167B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects

Abstract

A system to test operation of an optical sensor (50) is disclosed. The optical sensor (50) includes one or more photosensitive devices (80) configured to convert light to electrical signals. A test light source (60) is included within the housing (52) of the optical sensor (50). The test light source (60) is periodically pulsed on to emit radiation (62) at a sufficient intensity to saturate each of the photosensitive devices (80). Each of the photosensitive devices (80) generates a signal corresponding to the intensity of light (62) detected at that device (80). A logic circuit uses the signals corresponding to the intensity of light to identify whether each of the photosensitive devices (80) is performing at an acceptable level.
EP13156168.0A 2012-02-21 2013-02-21 System to detect failed pixels in a sensor array Active EP2632167B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/401,329 US9083946B2 (en) 2012-02-21 2012-02-21 System to detect failed pixels in a sensor array

Publications (3)

Publication Number Publication Date
EP2632167A2 EP2632167A2 (en) 2013-08-28
EP2632167A3 true EP2632167A3 (en) 2017-05-24
EP2632167B1 EP2632167B1 (en) 2020-10-14

Family

ID=47912900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13156168.0A Active EP2632167B1 (en) 2012-02-21 2013-02-21 System to detect failed pixels in a sensor array

Country Status (3)

Country Link
US (1) US9083946B2 (en)
EP (1) EP2632167B1 (en)
CN (1) CN103257368B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2999939C (en) 2015-09-24 2019-09-10 Hee Solar, L.L.C. System for testing photosensitive device degradation
CN107688207A (en) * 2017-09-28 2018-02-13 重庆集元科技有限公司 The overall monitoring method of logging radiation-resource
DE102019102466A1 (en) * 2019-01-31 2020-08-06 Endress+Hauser Conducta Gmbh+Co. Kg Optical sensor
CN114967832A (en) * 2022-05-23 2022-08-30 南昌航空大学 Manipulator for outputting control signal through photosensitive element array

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902402A2 (en) * 1997-09-15 1999-03-17 rms kleine gmbh vertrieb elektonischer geräte Method for optically monitoring a space
US20030030723A1 (en) * 2000-04-07 2003-02-13 Dietmar Dottling Protective device for safeguarding a hazardous area and method of checking the functional reliability of such a device
US20080106724A1 (en) * 2006-10-27 2008-05-08 Sick Ag Optoelectronic monitor including dynamic testing unit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303988A (en) * 1995-07-31 1997-03-05 Secr Defence Thermal imaging system with detector array calibration mode
US6359681B1 (en) * 1996-04-01 2002-03-19 Lockheed Martin Corporation Combined laser/FLIR optics system
US6285021B1 (en) * 1999-07-27 2001-09-04 Banner Engineering Corp. Self checking safety switch
US6888572B1 (en) 2000-10-26 2005-05-03 Rockwell Science Center, Llc Compact active pixel with low-noise image formation
US6655778B2 (en) * 2001-10-02 2003-12-02 Hewlett-Packard Development Company, L.P. Calibrating system for a compact optical sensor
US7136157B2 (en) * 2003-08-22 2006-11-14 Micron Technology, Inc. Method and apparatus for testing image sensors
US7081614B2 (en) 2004-05-21 2006-07-25 Raytheon Company Optical sensor system with built-in optical test capability
CN101210951B (en) * 2006-12-27 2010-12-22 中茂电子(深圳)有限公司 Built-in illuminating source photo-sensor detection device and test bench possessing same
TWI421482B (en) * 2008-12-02 2014-01-01 Chi Lin Technology Co Ltd Monitor correction apparatus & monitor thereof
EP2199999B1 (en) * 2008-12-19 2012-05-02 Pepperl + Fuchs GmbH Method for testing an optical sensor and testable optical sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902402A2 (en) * 1997-09-15 1999-03-17 rms kleine gmbh vertrieb elektonischer geräte Method for optically monitoring a space
US20030030723A1 (en) * 2000-04-07 2003-02-13 Dietmar Dottling Protective device for safeguarding a hazardous area and method of checking the functional reliability of such a device
US20080106724A1 (en) * 2006-10-27 2008-05-08 Sick Ag Optoelectronic monitor including dynamic testing unit

Also Published As

Publication number Publication date
EP2632167B1 (en) 2020-10-14
US20130215418A1 (en) 2013-08-22
CN103257368B (en) 2016-03-23
CN103257368A (en) 2013-08-21
EP2632167A2 (en) 2013-08-28
US9083946B2 (en) 2015-07-14

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